Production of elastic and plastic substances.



LOUIS STANGE, OF AIX LA-CHAPELLE, GERMANY.

PRODUCTION OF ELASTIC- AND PLASTIC SUBSTANCES;

\ Specification of Letters Patent.

Patented Sept. 10, 1907.

Applicationfiled June 1,1907- Ssrisl No. 376,850.

To all whom it may concern:

Be it known that I, LoUIs 'STANGE, a subject of the Emperor of Germany, residing at Aix-laChapelle, Germany, have invented certain new and useful Improvements in the Production of Elastic and Plastic Substances, of which'the following is a specification.

This invention relates to the production of plastic.

and elastic substances.

It is known that the so-called formaldehyde glue obtained by adding formaldehyde to solutions of glue shows resiliency I have now discovered that if a primary aromatic amin such as anilin an d a solution of gelatimare together'treated with formaldehyde, a plastic and elastic material of great value can be produced. I have also discovered that the elas-v ticity of the product can be increased and maintained by the addition to the anilin of a non-drying oil which dissolves anilin, such as arachis oil, castor oil, terpinol or caoutchouc oil. The formaldehyde may with advantage be mixed with glycerin (preferably dehydrated glycerin such as diglycerin or' polyglycerin) before admixture with other bodies. h p

The ingredients are mixed in a warm state and the resulting product is an elastic substance, the density of which can be increased by molding the same under pressure.

The action of formaldehyde on gelatin is to produce a colloidal insoluble body known as 'formaldehyde-gelatin. Formaldehyde also precipitates anilin oil and produces a compound known as anhydro-.

formaldehydanilin. The addition of other oils to the anilin oil according to the present invention has for its object to efiect the precipitation of the anhydroformaldehydanilin in a colloidal state'whereby a homogeneous mixture of the colloidal anhydroformaldehydanilin and the colloidal formaldehyde-gelatin is obtained.

The following is a description of a method of carrying this invention into practical effect: I first prepare separately three liquids which I will call preparations A, B and C.

' Preparation A is prepared as follows:650 parts by Weight of gelatin are moistened with 350 parts by weight of cold water and after soaking for a night are heated in a hot water bath with continuous agitation till a thorough solution is obtained (1000 parts by weight). This preparation A thus consists of a hot solution of gelatin strength. The gelatin used is preferably the normally white or colorless granular powder which is substantially pure. Some impure forms of gelatin or glue have proved ineffective but a preliminary test of the process upon a small quantity of the gelatin will at once decide whether a particular sample of gelatin can be used. To the solution may be added filling materials such as light carbonate of magnesium (MgCO say '10 parts by weight;

or coloring materials such as lamp black, say 10 parts by weight.

Preparation B is prepared as follows:Une part of anilin oil is mixed with from one to four parts of arachis oil. This mixture may be colored by the addition of say one tenth of one per cent. (0.1 of any anilin color which is insoluble in waterbut soluble in this mixture. The smaller the quantity of arachis oil used the greater 'will bethe density of the finished product. The arachis oil may be replaced by Castor oil, terpinol, caoutchouc oil or other similar oil which dissolves anilin andprevents the drying of the product.

Preparation 0 is prepared as follows :Formaldehyde (40% strength) and glycerin, preferably dehydrated .glycerin such as diglycerin or polyglycerin, are mixed together advantageously in equal parts but the propor tion of these ingredients may be widely varied.

To produce the finished product according to this invention, 210 parts by weight of preparation A at about 55 C. are slowly emulsified with such a quantity of preparation B as contains 20 parts by weight of anilin oil, and when the emulsification is complete, such a quantity of preparation 0 as contains 20 parts by weight of formaldehyde (40%) is added and emulsification is continued as quickly -as possible. The mixture becomes homogeneous in about 120 to 220 seconds and at the same time it becomes tough and loses its stickiness and should .be immediately molded into the desired iorm. The density of the finished product can be increased by molding the mixture under pressure. As the mass is semi-liquid but rather tough, it is best to use heated molds provided with small air vents at the top and to force the mass to rise under pressure from the bottom of the mold upwards so as to avoid air bubbles. The mass is allowed to cool down in the molds for say thirty-six hours. I find that a molding pressure of from five to ten atmospheres gives a plastic material with a density suitable for many purposes for which rubber can be used. Other methods of forming the plastic mass into convenient shapes may be employed.

As I have already indicated, the relative proportions of the ingredients of the preparations A, B and C may vary, but for complete reaction of the formaldehyde on the gelatin and on the anilin these substances should be nence of the final product. i

What I claim as my invention and desire to secure by Letters Patent is z- 1. The herein described process for the production of a plastic and elastic substance which consists in forming an emulsion of gelatin with a primary aromatic amin and treating said emulsion with formaldehyde.

2. The herein described process for the production of a plastic and elastic substance which consists in mixing a primary aromatic amin with a non-drying oil, forming an emulsion of said mixture with gelatin, and treating said emulsion with formaldehyde.

3. The herein described process for the production of a plastic and elastic substance which consists in mixing a primary aromatic amin with a non-drying oil, forming an emulsion of said mixture with gelatin, and treating said emulsion with a mixture of formaldehyde and glycerin.

4. The herein described process for the production of a plastic and elastic substance which consists in preparing a first solution of gelatin, preparing a second mixture of a primary aromatic amin with a 'non-drying oil, preparing a third mixture of formaldehyde and glycerin, forming an emulsion of said solution of gelatin with sai'dsecond mixture, treating said emulsion with said third mixture and continuing emulsification till the mass becomes plastic.

The herein described process for the production of a plastic and elasticsubstance first solution of gelatin, preparing a second mixture primary aromatic amin with a non-drying oil, preparing a third mixture of formaldehyde and glycerin, forming an emulsion of said solution of gelatin with said second mixture, treating said emulsion in a warm state with said third mixture and continuing emulsification till the mass becomes plastic.

6 The herein described process for the production of a plastic and-elastic substance which consists in preparing a first solution of gelatin, preparing a. second mixture of a primary aromatic amin'with a non-drying oil, preparing a third mixture of formaldehyde and glycerin, forming an emulsion of said solution of gelatin with said second;mixture, treating said emulsion in a warm statewith said third mixture, continuing emulsification till the mass be comes plastic, and molding the mass into the desired form under pressure.

7. The herein described process for the production of a plastic and elastic substance which consists in preparing a first solution of gelatin containing filling and coloring materials, preparing a second mixture of a primary aromatic amin with a non-drying oil, preparing a third mixture of formaldehyde andglycerin, forming an emulsion of said solution of gelatin with said second mixture, treating said emulsion in a warm state with said third mixture, continuing emulsification till the mass becomes plastic, and molding the mass into the desired form under pressure.

.8. The herein described process for the production of a plastic and elastic substance which consists in preparing a. first solution rt gelatin containing filling and coloring materials, preparing a second mixture of a primary aromatic amin -with a non-drying oil, preparing a third mixture of formaldehyde and glycerin, forming an emulsion of said solution of gelatin with said second mixture, treating said emulsion in a'warm state with said third mixture, adding a waterproofing agent, continuing emulsification till the mass becomes plastic, and molding the mass into the desired form under pressure.

9. The herein described process for the production of a plastic and elastic substance which consists in forming an emulsion of gelatin with analin'oil and treating said emulsion with formaldehyde.

10. The herein described process for the production of a plastic and elastic substance which consists in mixing anili n oil with arachis oil, forming an emulsion of said mixture with gelatin and treating said emulsion with formal dehyde.

11. The herein described process for the production of a plastic and elastic substance which consists in mixing anilin oil with arachis oil, forming an emulsion of said mixture with gelatin, treating said emulsion with a mixture of formaldehyde and dehydrated glycerin.

which consists in preparing a of a 12. The herein described process for the production of a plastic and elastic substance which consists in preparing a first mixture of gelatin and waterand heating till thorough solution is obtained, preparing a second mixture of analin oil with arachis oil, preparing a third mixture of formaldehyde and dehydrated glycerin, forming an emulsion of the first mixture with the second mixture, treating the emulsion with the third mixture and continuing the emulsification until the mass becomes plastic.

13. The herein described process for the production of a plastic and elastic substance which consists in preparing a first mixture of 650 parts by weight of gelatin and 350 parts of water and heating till thorough solution is obtained, preparing a second mixture of one part of anilin oil with 1 to 4 parts of arachis oil, preparing a third mixture of formaldehyde and dehydrated glycerin in substantially equal parts, forming an emulsion of 210 parts of the first mixture with such a quantity of the second mixture as contains 20 parts of anilin oil, adding to the emulsion such a quantity of the third mixture as contains 20 parts of formaldehyde, and continuing the emulsification until the mass becomes plastic.

l-i. The herein described process for the production of a plastic and elastic substance which consists in preparing a'mixture of 650 parts by weight of gelatin and 350 parts of water and heating till thorough solution is obtained, preparing a second mixture of one part of anilin oil with 1 to 4 parts of arachis oil, preparing a third mixture of, formaldehyde and dehydrated glycerin in substantially equal parts, forming an emulsion of 210 parts of the first mixture with such a quantity of the second mixture as contains 20 parts of anilin oil, adding to the emulsion in a warm state such a quantity of the third mixture as contains 20 parts of formaldehyde, and continuing the emulsification until the mass becomes plastic. I

15. The herein described process for the production of a plastic and elastic substance which consists in preparing a first mixture of 650 parts by weight of gelatin and 350 parts of water and heating till thorough solution is ob tained, preparing a second mixture of one oil with. 1 to 4 parts of arachis oil, preparing a third mixture of formaldehyde and dehydrated glycerin in substantially equal parts, forming an emulsion of 210 parts of the first mixture with such a quantity of the second mixture as contains 20 parts of anilin oll, addin g to the emulsion in a warm state such a quantity of the third part of anilin mixture as contains 20 parts of formaldehyde, continuing V the emulsification until the mass becomes plastic and molding the mass into the desired form under pressure.

16f The herein described process for the production of a plastic and elastic substance which consists in preparing a first mixture of 650 parts by weight of gelatin and 350 parts of water with filling and coloring materials and heating till thorough solution is obtained, preparing a second mixture of one part of anilin oil with 1 to 4 parts of arachis oil, preparing a third mixture of formaldehyde and dehydrated glycerin in substantially equal parts, forming an emulsion of 210 parts of the first mixture with such a quantity'o f the second mixture as contains 20 parts of anilin oil, addlng,to' the emulsion in a warm state such a quantity of the third mixture as contains 20 parts of formaldehyde, continuing the emulsification until the mass becomes plastic, and molding the mass into the desired form under pressure.

17. The herein described process for the production of a plastic and elastic substance which consists in preparing a first mixture of 650 parts by weight of gelatin and 350 parts of water with filling and coloring materialsand heating till thorough solution is obtained, preparing a second mixture of one part of anilin oil with one to four parts ofarachis oil, preparing a third mixture of formaldehyde and dehydrated glycerin in substantially equal parts, forming an emulsion of 210 parts of the first mixture with such a quantity of the second mixture as contains 20 parts of anilin oil, adding to the emulsion in a warm state such a quantity of the third mixture as contains 20 parts of formaldehyde, adding a waterproof agent, continuing the emulsification until the mass becomes plastic, and molding the mass into the desired form.

18. The herein described composition of matter consisting of anhydroformaldehydanilin incorporated with for maldehydegelatin.

19. The herein described composition of matter consisting of colloidal anliydroformaldehydanilin incorporated with colloidal formaldehydegelutin.

20. The herein described composition of matter consisting of a homogeneous mixture of colloidal anhydroformaldehydanilin, arachis oil, and colloidal formaldehyde gelatin.

21. The herein described composition of matter consisting of a homogeneous mixture of colloidal anhydroformaldehydanilin, arachis oil, colloidal formaldehydegelatin and dehydrated glycerin.

22. The herein described composition of matter consisting of a homogeneous mixture of colloidal anhydroformaldehydanilin, arachis oil, colloidal formaldeliydegelatin, dehydrated glycerin and a waterproof agent.

' In testimony whereof I have signedrmy name to this specification in the presence of two subscribing witnesses.

LOUIS STANGE.

Witnesses HENRY QUADFLIEQ, LUDWIG BEREND. 

